Which of the Following Is Evidence for a Chemical Reaction

question 59

Multiple Choice

Which of the following is evidence for a chemical reaction?

• A)A gas is detected.
• B)A precipitate is formed.
• C)A flame is observed.
• D)all of the above
• E)none of the above

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Definitions:

One-way Communications

A process where information flows from the sender to the receiver without expecting or allowing any response or feedback.

Group Communications

The processes and dynamics through which members of a group exchange information, ideas, and feelings to achieve a common goal.

Interactive Conversation

A dynamic exchange of ideas and information between individuals that is characterized by active participation and engagement from all parties involved.

Research

The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.